60fps file in a 24fps sequence

Community Beginner ,
Mar 23, 2021 Mar 23, 2021

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Hi,

 

Have a 60 fps file I was given to put in a 24 fps sequence without it looking "stuttery".

 

Tried exporting the original clip at 24fps and reimporting it but it still looks liek it's missing frames.

 

 A lot of advice says to modify the Interpret Footage frame rate but that just slows it down.

 

Any help woudl be greatly appreciated.

 

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Editing, Export, How to

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Enthusiast ,
Mar 23, 2021 Mar 23, 2021

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Either try After Effects (I've heard it's good at it) or you can try next not so simple way:

first up-convert to 120fps using Optical flow, then down-convert to 24fps using Frame Sampling. Ratio of upconverted fps to final fps must be integer, i.e. 120/23.976 wont work well, but 119.88/23.976 will do. I'm dunno if you can do this solely in Premiere Pro, but it's doable via AviSynth. Up-convert (2*FPS) script can look like this:

FFVideoSource("d:\1080p-60p_G5_night_avchd_psh.MTS")
AddBorders(8,8,8,8)
bs = 8
overlap = 0
mt=false
sc_full = MSuper(hpad=0,vpad=0)
pre = BilinearResize (width/2,height/2)
sc_ds = pre.MSuper (hpad=0,vpad=0)
bv_ds = sc_ds.MAnalyse (isb=true, blksize=bs, overlap=overlap, mt=mt)
fv_ds = sc_ds.MAnalyse (isb=false, blksize=bs, overlap=overlap, mt=mt)
bv    = MScaleVect (bv_ds,2)
fv    = MScaleVect (fv_ds,2)
MFlowFps (sc_full, bv, fv, num = 2 * FrameRateNumerator, den = FrameRateDenominator)
Crop(8,8,-8,-8)
Prefetch(6)

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Enthusiast ,
Mar 23, 2021 Mar 23, 2021

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60 to 24fps, how to using Premiere Pro:

src 60fps -> seq 60fps -> duration 2x, Optical flow => export  clp1 (60fps, Cineform, 2x duration)
clp1 -> interpret 120fps -> seq 120fps  =>  export  clp2 (120fps, Cineform, 1x duration)
clp2 -> [interpret 120 if needed]  => sequence 24fps, done

Just a reminder, Optical Flow type fps conversion has its limits. Likely will be Ok for reallife footage but may not work well for 3D renders or gameplay captures.

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